Related Products of 58022-21-2, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, and a compound is mentioned, 58022-21-2, 1-(Isoquinolin-1-yl)ethanone, introducing its new discovery.
Acid-catalyzed Cyclization of Chalcones derived from Various Nitrogenous Heteroaromatic Compounds. II
1-Cinnamoylisoquinoline (I) was treated with perchloric acid in ethanol to give 2,5-dihydro-1-oxo-3-phenyl-<1H>pyrrolo<2,1-a>isoquinolinium perchlorate (V) in the yield of 48.1percent.V was derived to 1-(4-nitrobenzoyloxy)-3-phenyl-<1H>pyrrolo<2,1-a>isoquinoline(VI) by means of the Shotten-Baumann reaction. 3-Methylquinoxalin-2-yl 4-phenyl-1,3-butadienyl ketone (VIIa) was treated with acid to give 3-hydroxy-4-methyl-1-styrylpyrrolo<1,2-a>quinoxalinium perchlorate (VIIIa) in quantitative yield.VIIIa was treated with diazomethane to give 3-methoxy-4,5-dimethyl-1-styrylpyrrolo<1,2-a>quinoxalinium perchlorate (XI).VIIIa gave a monobromide (XIIa) on treatment with bromine in carbon tetrachloride.The rate of acid-catalyzed cyclization of 3-methylquinoxalin-2-yl 4-(4-nitrophenyl)-1,3-butadienyl ketone (VIIb) was slower than that of VIIa.Attempts to cyclize XIV intramolecularly to 2,5-dihydro-1-phenylpyrrolizin-3<1H>-one (XVI) were unsuccessful under various conditions.Keywords – chalcone; acid-catalyzed cyclization; Michael addition; pyrrolo<1,2-a>quinoxaline; pyrrolo<2,1-a>isoquinoline
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Related Products of 58022-21-2. In my other articles, you can also check out more blogs about 58022-21-2
Reference£º
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem